Donald Joseph Cejnowa Sr.

He was born on June 13, 1957, in New Brunswick, New Jersey, and spent much of his youth and young adult life in Baldwin Park, California. Over the years, he also lived in Rancho Cucamonga, California, Alta Loma, California, and Riverside, California.

Donald carried with him a strong sense of identity rooted in family, heritage, and responsibility. He was the son of Annelore Schmitt, who was born in Germany, and Donald Cejnowa Sr., an American of Polish descent. These roots shaped his values—honesty, loyalty, honor, and integrity—qualities that guided how he lived his life and cared for his family.

Donald proudly served in the United States Army, where he formed lasting friendships and developed the discipline and resilience that would define his life.

He later dedicated 30 years as a correctional officer, a career that reflected his strength, responsibility, and unwavering sense of duty. He approached life with a practical mindset, always focused on doing what needed to be done and making sure his family was provided for and secure. He was known for his steady presence and quiet strength.

Outside of work, Donald had a lighter side that those closest to him cherished. He was funny, often goofy, and known for his playful sense of humor and lighthearted teasing. He loved music and could often be heard singing as he walked around the house. He enjoyed music, was a huge Beatles fan, and collected Beatles memorabilia. He also had a passion for cooking, computer technology repair, troubleshooting, fishing, videography, flying drones, kayaking, shooting, camping, riding Harleys, and scuba diving, becoming an advanced certified diver after taking an interest in it alongside his wife. Although life circumstances prevented him from pursuing teaching, it remained something he took pride in.

He shared 52 years with his wife, Terry Sue Cejnowa, a lifelong partnership built on commitment, resilience, and unwavering loyalty. Together they raised three children—Steven Joseph Cejnowa, Donny Joseph Cejnowa III, and Kathleen Ann Cejnowa. He was a proud grandfather to Joseph Anthony, Ciarra Raylene, Leilani Mirayah, Dominic Mathieu, and Benjamin Joseph, and a great-grandfather to Angelo Giovanni. His family was his foundation, and he remained a constant source of strength, protection, and support throughout his life.

Donald faced a diagnosis of stage 2 lung cancer with bravery and courage. He underwent surgery to remove the cancer, and while the procedure itself was successful, he was unable to recover from the complications that followed. He developed respiratory failure and sepsis, and ultimately passed with his loved ones by his side.

His life stands as a testament to unwavering devotion—devotion to his family, his marriage, and his responsibilities. He will be remembered for his steadfast presence, his humor, and the legacy of strength, integrity, and loyalty he leaves behind.

Services to honor Donald’s life will be held on Friday, May 29, 2026 at Draper Mortuary at 811 N Mountain Ave, Ontario, CA 91762 beginning at 2:00pm, where he will receive military and law enforcement honors, including the presentation of the flag, the playing of Taps, and a 21 gun salute. A reception will be held also at Draper Mortuary Ontario, CA immediately following from 3:00pm-5:00pm.